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Pfister 970-500 Replacement Bibb Seats, 10 Pack

Brass bibb seats, 21/32 in. x 18 thread, for Pfister and Price Pfister two- and three-handle compression tub and shower valves.

FourHome 4HP85013 · UPC 850054895202 · ASIN B0DDTTC197
Ten brass bibb seats for Pfister 970-500 arranged in a pyramid, 10 pack
Ten brass bibb seats for Pfister 970-500 arranged in a pyramid, 10 packPfister 970-500 replacement bibb seat features: solid brass, 21/32 in. x 18 thread, hex socket and 10 seats per packPfister 3-handle and 2-handle tub, shower and lavatory faucet types that use bibb seats, with the seats needed for each valvePfister 970-500 bibb seat dimensions, 13/32 in. height, 3/4 in. flange diameter, 21/32 in. x 18 thread and 1/4 in. hex wrenchBibb seat location in a 3-handle Pfister valve: hot seat, diverter seat and cold seat, one seat per handleBefore and after of a leaky Pfister shower valve fixed with new brass bibb seats
$21.98
Amazon price as of 2026-09-23. Current price is on Amazon.
Buy on AmazonBuying 10 or more? Volume pricing
In stock on Amazon, ships Prime
ReplacesPfister 970-500 and 5713
Thread21/32 in. x 18
Pack10 seats
MaterialMachined brass
SocketStandard hex for a seat wrench

Replaces these part numbers

OEM part numbersAftermarket equivalents
Pfister / Price Pfister 970-500
Pfister 5713
Danco 38 (30037B)

Will it fit?

Fits

  • Pfister and Price Pfister two-handle compression tub and shower valves
  • Pfister and Price Pfister three-handle compression tub and shower valves

Not compatible with

  • Single-handle pressure-balance valves
  • Ceramic disc cartridge faucets
  • Compression valves with a different seat thread
  • Valve bodies with a seat cast into the body (not removable)

Is this your part?

Your old seat is a short brass insert down inside the valve pocket with a hex or square hole in the middle, visible once the stem is out. Back it out with a seat wrench and match the thread at 21/32 x 18, the hex socket size, and the tapered face.

When to replace it

The tub spout drips no matter how hard the handle is turned, water weeps past the handle, or a fresh stem washer stopped the drip for a week and then it came back. That pattern is a grooved seat face, not a bad washer.

Specifications

FourHome part4HP85013
UPC850054895202
Thread21/32 in. x 18 TPI
MaterialMachined brass
SocketStandard hex
Sealing faceTapered
Quantity10 seats

What is in the box

How to install it

Time: 5 to 10 minutes per seat. Tools: Seat wrench, Screwdriver, Adjustable wrench, Thread sealant or PTFE tape.

  1. Shut off the water.
  2. Pull the handle and the stem.
  3. Seat the wrench squarely in the hex so it does not round out, and back the old seat out.
  4. Put thread sealant or PTFE tape on the new seat.
  5. Thread it in until snug, then stop. An overtightened brass seat can strip the pocket, and a stripped pocket means replacing the valve.
  6. Reassemble, restore water and check both handles.

Questions

Why does my Pfister faucet still drip after a new washer?

Years of washer movement and mineral deposits cut a groove into the seat face. Once the face is grooved, no washer will seal against it. Replace the seat.

What thread size are these seats?

21/32 in. x 18 threads per inch, the size Pfister catalogs as 970-500 and 5713.

How many valves does a 10 pack cover?

Ten seats rebuild three complete three-handle valves with one left over, or cover ten single-side repairs.

Is a seat wrench included?

No. You need a seat wrench that fits the hex socket.

Related parts

Repair guides

FourHome is not affiliated with or endorsed by any faucet manufacturer. Brand names and part numbers are used only to identify compatibility.